There are many land-based and online casinos in the United Kingdom. Finding the best online casino can be harder than it sounds. The main reason is that the UK has a long history of casino operators that have been in business for decades, if not centuries. They all offer something special and unique to their customers. The second reason is that everyone has their own idea of "best". What you think is the best casino may not meet the needs of other people. You can rate an online casino on a variety of criteria such as user experience, bonuses, and customer service.